/* Drone Show Engine: página de presentación. Un solo fichero, sin dependencias. */
:root {
  --fondo: #05080d;
  --panel: #0c131c;
  --panel-2: #111b27;
  --borde: #1e2c3b;
  --texto: #e8f0f5;
  --tenue: #9db0bf;
  --acento: #4fd8f5;
  --acento-2: #ffb347;
  --bien: #5fd38d;
  --ancho: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--fondo);
  color: var(--texto);
  font: 17px/1.6 "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
img, video { max-width: 100%; height: auto; display: block; }
a { color: var(--acento); }
h1, h2, h3 { line-height: 1.15; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.7rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.4rem); font-weight: 750; }
h3 { font-size: 1.2rem; font-weight: 700; }
p { margin: 0 0 1em; }
.caja { width: min(var(--ancho), 100% - 40px); margin-inline: auto; }
.tenue { color: var(--tenue); }
.etiqueta {
  display: inline-block; font-size: .78rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--acento); margin-bottom: 12px; font-weight: 700;
}

/* Cabecera */
.cabecera {
  position: sticky; top: 0; z-index: 20; background: rgba(5, 8, 13, .88);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--borde);
}
.cabecera .caja { display: flex; align-items: center; gap: 22px; height: 64px; }
.marca { font-weight: 800; letter-spacing: .08em; color: var(--texto); text-decoration: none; font-size: 1.02rem; white-space: nowrap; }
.marca span { color: var(--acento); }
.menu { display: flex; gap: 20px; margin-left: auto; font-size: .95rem; }
.menu a { color: var(--tenue); text-decoration: none; }
.menu a:hover { color: var(--texto); }
.idiomas { display: flex; border: 1px solid var(--borde); border-radius: 8px; overflow: hidden; font-size: .85rem; font-weight: 700; }
.idiomas a { color: var(--tenue); text-decoration: none; padding: 6px 11px; }
.idiomas a:hover { color: var(--texto); }
.idiomas a[aria-current] { background: var(--acento); color: #04222b; }
.columnas { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(24px, 4vw, 56px); }
.columnas p { color: #cfdde6; }
.columnas h3 { margin-top: 0; }
.columnas h3 + .lista { margin-bottom: 26px; }
.lista { margin: 0; padding-left: 1.1em; color: var(--tenue); }
.lista li { margin-bottom: .5em; }
.lista strong, .columnas strong { color: var(--texto); }

/* Botones */
.boton {
  display: inline-block; padding: 13px 22px; border-radius: 10px; font-weight: 700; text-decoration: none;
  border: 1px solid var(--acento); color: var(--acento); background: transparent; font-size: 1rem;
}
.boton.lleno { background: var(--acento); color: #04222b; }
.boton.oro { border-color: var(--acento-2); background: var(--acento-2); color: #2b1a00; }
.boton:hover { filter: brightness(1.1); }
.boton:focus-visible, a:focus-visible { outline: 3px solid var(--acento-2); outline-offset: 3px; }
.botones { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }

/* Portada */
.portada { position: relative; overflow: hidden; border-bottom: 1px solid var(--borde); }
.portada video { position: absolute; top: 0; bottom: 0; right: 0; left: 36%; width: 64%; height: 100%; object-fit: cover; opacity: .85; }
.portada::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(5, 8, 13, 1) 0%, rgba(5, 8, 13, 1) 36%, rgba(5, 8, 13, .25) 58%, rgba(5, 8, 13, 0) 100%); }
.portada .caja { position: relative; z-index: 2; padding: clamp(70px, 12vw, 150px) 0; }
.portada p.entrada { font-size: clamp(1.05rem, 1.7vw, 1.3rem); max-width: 44ch; color: #cfdde6; }
.portada h1 { max-width: 17ch; }

/* Cifras */
.cifras { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--borde); border-bottom: 1px solid var(--borde); }
.cifras div { background: var(--panel); padding: 26px 20px; text-align: center; }
.cifras b { display: block; font-size: clamp(1.6rem, 3vw, 2.3rem); color: var(--acento); font-weight: 800; }
.cifras span { color: var(--tenue); font-size: .92rem; }

section { padding: clamp(56px, 8vw, 96px) 0; }
section.alterna { background: var(--panel); border-block: 1px solid var(--borde); }
.entradilla { max-width: 62ch; color: var(--tenue); font-size: 1.08rem; margin-bottom: 36px; }

/* Funciones: imagen y texto alternados */
.funcion { display: grid; grid-template-columns: 1.15fr 1fr; gap: clamp(24px, 4vw, 56px); align-items: center; margin-bottom: clamp(44px, 6vw, 80px); }
.funcion:last-child { margin-bottom: 0; }
.funcion:nth-child(even) .foto { order: 2; }
.foto { border: 1px solid var(--borde); border-radius: 14px; overflow: hidden; background: #000; box-shadow: 0 20px 60px rgba(0, 0, 0, .5); }
.funcion ul { margin: 0; padding-left: 1.1em; color: var(--tenue); }
.funcion li { margin-bottom: .35em; }
.numero { color: var(--acento-2); font-weight: 800; font-size: .9rem; letter-spacing: .1em; }

/* Vídeos */
.videos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.videos figure { margin: 0; background: var(--panel-2); border: 1px solid var(--borde); border-radius: 14px; overflow: hidden; }
.videos video { width: 100%; aspect-ratio: 16 / 9; background: #000; }
.videos figcaption { padding: 12px 16px 16px; }
.videos figcaption b { display: block; }
.videos figcaption span { color: var(--tenue); font-size: .9rem; }

/* Tablas */
.tabla { width: 100%; border-collapse: collapse; background: var(--panel-2); border: 1px solid var(--borde); border-radius: 14px; overflow: hidden; }
.tabla th, .tabla td { text-align: left; padding: 13px 18px; border-bottom: 1px solid var(--borde); vertical-align: top; }
.tabla tr:last-child th, .tabla tr:last-child td { border-bottom: 0; }
.tabla th { width: 30%; color: var(--tenue); font-weight: 600; }
.desliza { overflow-x: auto; }

/* Comprar */
.planes { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.plan { background: var(--panel-2); border: 1px solid var(--borde); border-radius: 16px; padding: 30px; display: flex; flex-direction: column; }
.plan.destacado { border-color: var(--acento-2); box-shadow: 0 0 0 1px var(--acento-2) inset; }
.plan h3 { font-size: 1.5rem; }
.plan .para { color: var(--tenue); margin-bottom: 18px; }
.plan ul { padding-left: 1.1em; margin: 0 0 22px; }
.plan li { margin-bottom: .45em; }
.plan .modalidades { border-top: 1px solid var(--borde); padding-top: 16px; margin-bottom: 22px; color: var(--tenue); font-size: .96rem; }
.plan .modalidades b { color: var(--texto); }
.plan .boton { margin-top: auto; text-align: center; }

/* Comprobado */
.pruebas { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 26px; }
.pruebas div { background: var(--panel-2); border: 1px solid var(--borde); border-radius: 12px; padding: 20px; }
.pruebas b { color: var(--bien); display: block; font-size: 1.05rem; margin-bottom: 4px; }
.pruebas span { color: var(--tenue); font-size: .95rem; }
.aviso { border-left: 4px solid var(--acento-2); background: rgba(255, 179, 71, .08); padding: 18px 22px; border-radius: 0 12px 12px 0; }

/* Preguntas */
details { border: 1px solid var(--borde); border-radius: 12px; background: var(--panel-2); margin-bottom: 10px; }
summary { cursor: pointer; padding: 16px 20px; font-weight: 700; }
details p { padding: 0 20px 18px; margin: 0; color: var(--tenue); }

/* Contacto y pie */
.contacto { text-align: center; }
.contacto .entradilla { margin-inline: auto; }
.contacto .botones { justify-content: center; }
.correo { margin-top: 22px; color: var(--tenue); }
/* Formulario */
.formulario { max-width: 720px; margin: 0 auto; text-align: left; display: grid; gap: 16px; background: var(--panel-2); border: 1px solid var(--borde); border-radius: 16px; padding: clamp(20px, 4vw, 34px); }
.formulario .dos { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.formulario label { display: grid; gap: 6px; font-size: .92rem; color: var(--tenue); font-weight: 600; }
.formulario input[type="text"], .formulario input[type="email"], .formulario select, .formulario textarea {
  width: 100%; background: #070c12; color: var(--texto); border: 1px solid var(--borde); border-radius: 10px; padding: 12px 14px; font: inherit;
}
.formulario input:focus, .formulario select:focus, .formulario textarea:focus { outline: 2px solid var(--acento); outline-offset: 1px; border-color: var(--acento); }
.formulario ::placeholder { color: #5f7384; }
.formulario .acepto { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; }
.formulario .acepto input { margin-top: 5px; width: 18px; height: 18px; accent-color: var(--acento); }
.formulario button { cursor: pointer; justify-self: start; font-family: inherit; }
.formulario button[disabled] { opacity: .6; cursor: wait; }
.resultado { margin: 0; min-height: 1.5em; font-weight: 600; }
.resultado.bien { color: var(--bien); }
.resultado.mal { color: #ff8f7a; }
/* El campo trampa: fuera de la vista de una persona, a la vista de un robot. */
.trampa { position: absolute; left: -6000px; width: 1px; height: 1px; overflow: hidden; }
.legal { max-width: 760px; }
.legal h2 { font-size: 1.3rem; margin-top: 1.6em; }

footer { border-top: 1px solid var(--borde); padding: 28px 0 40px; color: var(--tenue); font-size: .9rem; }
footer a { color: var(--tenue); }
footer a:hover { color: var(--texto); }
footer .caja { display: flex; flex-wrap: wrap; gap: 10px 26px; justify-content: space-between; }

@media (max-width: 900px) {
  .menu { display: none; }
  .portada video { left: 0; width: 100%; opacity: .35; }
  .portada::after { background: linear-gradient(180deg, rgba(5, 8, 13, .7), rgba(5, 8, 13, .88)); }
  .cabecera .caja { justify-content: space-between; }
  .cifras { grid-template-columns: repeat(2, 1fr); }
  .funcion, .columnas { grid-template-columns: 1fr; }
  .funcion:nth-child(even) .foto { order: 0; }
  .videos { grid-template-columns: 1fr; }
  .planes, .pruebas, .formulario .dos { grid-template-columns: 1fr; }
  .tabla th { width: 38%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .portada video { display: none; }
}